Injured Indian pacer Zaheer Khan revealed that he underwent surgery on his injured ankle last Monday.

Zaheer, who bowled just 13.3 overs in the first Test at the Lord's last month before injuring himself, went under the knife on Monday.

"Got the surgery done on ankle on Monday," Zaheer wrote on his Twitter page.

In his latest tweet, he wrote, "Recovering well .... getting used to walking on crutches."

Zaheer was touted to play a big role in India's fortunes in the ongoing four-match Test series against England but he left the field on the first day of the Test series after bowling 13.3 overs and taking two wickets.

R P Singh was called in his place in the Indian side who have already lost the series and the Test number one spot.